Can someone tell me what the problem is with my .Touched Event Part?

Can someone tell me what the problem is with my .Touched Event Part? I've tested this script multiple times and the Part Exp which is the large custom explosion radius in game?

Mouse.Button1Down:connect(function()
if not (ShootDeb) and (Ammo ~= 0) then
ShootDeb = true
Ammo = Ammo - 1
Missle = Instance.new("Part",Mod)
Missle.Name = "Missle"
Missle.Size = Vector3.new(1.6, 1.8, 4.2)
Missle.BrickColor = BrickColor.new("Really black")
MMesh = Instance.new("SpecialMesh",Missle)
MMesh.Name = "MMesh"
MMesh.MeshType = "FileMesh"
MMesh.MeshId = "http://roblox.com/asset/?id=2251534"
MMesh.Scale = Vector3.new(0.5, 0.6, 0.3)
Missle.CFrame = Hole.CFrame*CFrame.new(0,-7,0)
BodyV = Instance.new("BodyVelocity",Missle)
BodyV.maxForce = Vector3.new(math.huge,math.huge,math.huge)
wait(0.01)
Missle.CFrame = CFrame.new(Missle.Position,Mouse.Hit.p)
BodyV.velocity = Missle.CFrame.lookVector*130
Missle.Touched:connect(function(Hit)
BodyV:Destroy()
Exp = Instance.new("Part",workspace)
Exp.CanCollide = false
Exp.Anchored = true
Exp.CFrame = Missle.CFrame
Exp.Name = "Exp"
Exp.Locked = true
Exp.TopSurface = "Smooth"
Exp.BottomSurface = "Smooth" 
Exp.Shape = "Ball"
Exp.BrickColor = BrickColor.new("Bright yellow")
Exp.Transparency = 0.5
Exp2 = Exp:Clone()
Exp2.CFrame = Exp.CFrame
Exp2.Parent = workspace
Exp2.Name = "Exp2"
Exp2.BrickColor = BrickColor.new("Neon orange")
Exp3 = Exp:Clone()
Exp3.CFrame = Exp2.CFrame
Exp3.Parent = workspace
Exp3.Name = "Exp2"
Exp3.BrickColor = BrickColor.new("Bright red")
Missle:Destroy()
for i = 1, 24 do
wait(0.01)
Exp.Size = Vector3.new(i,i,i)
Exp2.Size = Vector3.new(i - 4 , i- 4 , i - 4)
Exp3.Size = Vector3.new(i - 6 , i- 6 , i - 6)
end
wait(0.01)
Exp:Destroy()
Exp2:Destroy()
Exp3:Destroy()
Exp.Touched:connect(function(Hit)
local FindH = Hit.Parent:findFirstChild("Humanoid")
if (FindH ~= nil) then
FindH.Humanoid:TakeDamage(math.random(40,78))
end
end)
game.Debris:AddItem(Missle,8)
wait(4)
ShootDeb = false
end)
end
end)